If you trade a USB thumb drive, hard drive, or other portable storage between Mac and Windows systems, the .DS_Store, .Trashes, and other starts-with-a-dot files left behind by Macs can get annoying. This script automatically wipes away those left-behind files.

MacWorld's OS X Hints section suggests modifying the default umount script, such that it automatically searches out and wipes away any traces of Mac-only functionality from drives when they're ejected or unmounted from the system. It takes a small bit of Terminal work, but the results could pay off long after your work is done. Two catches, though: updating your system to a new OS version may wipe this change away, and if you actually want other types of hidden files (named with a period as their first character), this script will automatically wipe those, too. Still, both are pretty niche concerns, compared with the annoyance some may find